* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}
a {
  text-decoration: none;
}
body {
  background-color: #f9f9f9;
}
.header {
  width: 100%;
  background-color: #303b4d;
  box-shadow: 5px 5px 10px #ccc;
}
.header .nav {
  height: 80px;
  margin: 0 auto;
  padding-right: 100px;
  width: 1200px;
}
.header .nav .logo {
  width: 200px;
  height: 80px;
  background-color: #fff;
  float: left;
}
.header .nav .logo img {
  width: 100%;
  height: 100%;
}
.header .nav .navList {
  width: 800px;
  height: 80px;
  float: right;
}
.header .nav .navList ul {
  list-style: none;
  width: 100%;
  height: 80px;
}
.header .nav .navList ul li {
  float: left;
  width: 160px;
  line-height: 80px;
  background-color: #303b4d;
  transition: all 0.3s;
  text-align: center;
  height: 80px;
}
.header .nav .navList ul li:hover a {
  color: #ec3919;
}
.header .nav .navList ul li a {
  color: #fff;
  transition: all 0.5s;
}
.header .nav .navList ul li a.active {
  color: #ec3919;
}
.content {
  width: 100%;
}
.content .content_content {
  width: 1200px;
  margin: 0 auto;
}
.content .content_content .content_nav {
  height: 80px;
  width: 100%;
  line-height: 80px;
  color: #777;
}
.content .content_content .content_nav a {
  color: black;
  font-size: 16px;
}
.content .content_content .content_nav a.active {
  color: #ec3919;
  font-weight: 700;
}
.content .content_content .left {
  width: 850px;
  height: 800px;
  padding: 20px;
  float: left;
  background-color: #fff;
  box-shadow: 0 2px 10px #f9f9f9;
}
.content .content_content .left img {
  margin-bottom: 20px;
  width: 100%;
}
.content .content_content .left p {
  text-indent: 2em;
}
.content .content_content .left .title {
  font-size: 25px;
  margin-bottom: 10px;
}
.content .content_content .left .date {
  margin-bottom: 20px;
}
.content .content_content .left .date .dateTime,
.content .content_content .left .date .author {
  color: #777;
  margin-right: 20px;
}
.content .content_content .right {
  width: 300px;
  float: right;
  height: 800px;
  text-align: center;
  padding-top: 100px;
  background-color: #fff;
  box-shadow: 0 2px 10px #f9f9f9;
}
